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SUMAX WIRES SP PRO BLU 18+ ST

$ 89.95

Only 1 left in stock

Spark Plug Wires – 10.4 mm – Blue

Part #: 21040366

SUMAX quality guaranteed.

Available for ship to store or drop ship.


Free Shipping on New Part orders over $100

SUMAX WIRES SP PRO BLU 18+ ST

Product Specifications

Weight 0.70 lbs
Part Number

21040366

Punctuated Part Number

2104-0366

Vendor Part Number

S49638

Vendor Punctuated Part Number

S49638

Commodity Code

2104

Commodity Group

ELECTRICAL SYSTEM GROUP

Commodity Type

PLUG WIRE GROUP

MPN

21040366

Brand

SUMAX

Get the performance you need with the SUMAX WIRES SP PRO BLU 18+ ST, available now at Knobtown Cycle. Kansas City’s trusted source for quality motorcycle parts.

Product Description

WIRES SP PRO BLU 18+ ST

  • Precut and have the plug/coil boots and terminals already installed
  • Boots and wires are made from extra-high-temperature silicon, which gives protection up to 600°F
  • Spiro-Pro core provides up to 10 times the conductivity of a standard carbon-core wire
  • Low resistance means they run cooler and last three to four times longer than carbon-core wires
  • Made in the USA

Part Locations

Location Available
Wisconsin (WI) 1
New York (NY) 0
Texas (TX) 0
Nevada (NV) 0
North Carolina (NC) 0
National Total 1

Stock levels last updated: December 26, 2025 1:59 AM

Professional Installation Available

Knobtown Cycle offers professional installation services. Contact us via a service request to learn more.


Thank you for Shopping at Knobtown Cycle!

When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.

Kit Fox – Owner Knobtown Cycle

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Need help with installation?  Our Service Department based in Kansas City, Missouri is here for you.  Fill out a Service Request and lets get you rolling!